An electrician charges $40 per visit, and $20 per hour of work. On a particular day, he made 3 visits and calculated that his av erage earnings were $50 per hour. Use this information to complete the statement. He worked hours that day.
1 answer:
Answer:
4 hours
Step-by-step explanation:
For three visits, the electrician earned $40 × 3 = $120 in "per-visit" charges. For working x hours, he earned 20x in "per-hour" charges. The total of these came to 50x:
120 +20x = 50x
120 = 30x . . . . . . . . subtract 20x
4 = x . . . . . . . . . . . . . divide by 30
The electrician worked 4 hours that day .
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Does this help if so please mark me brainlest
